Hydroplane and aeroplane.



RGROSSER.

HYDROPLANE AND AEROPLAN'E. I APPLICATION FILED MAR. 28, 19I3. 1,136,420, Patented Apr. 20, 1915.

PAUL GROSSER, or ALBEnsnonr, GERMANY.

HYDROPLANE AND AEROPLANE.

Specification of Letters fatent. Patented Apr. 20, 1915.

Application filed March 28, 1913. Serial No. 757,440.

The floats are provided with gliding planes in order to lift the machine out-of' the water when traveling thereon.

The invention consists in the construction, arrangement and combination of parts described hereinafter and pointed out in the claims.

One illustrative embodiment of my invention is represented by way of example in the accompanying drawing, wherein Figure 1 is a side elevation showing a flying machine according to my invention, but without carrying planespFig. 2 is a plan view showing a float with a wheel for starting; Fig. 3 is a detail view showing the' apparatus for winding up the wheels for starting for traveling onwater, and Fig. {i is a section through the cock for the device for emptying the float.

Referring to the drawing, the .body or frame a of the flying machine rests on one or two front floats .b and a rear float b. The front float or floats is or are located approximately under the center of gravity of the flying machine, while the rear'float is arranged under the vertical rudder s and is When the machine is on the water the front floats carry the greater part of the weight, while the rear float enables the machine to be steered and aids in preventing the machine tilting. Each front float carries a gliding-plane c 'adjustably mounted in a slanting position. Two wheels (1 for-starting are located one at each side of the one or two front floats approximately under the center of .gravity in the manner which will i be readily understood from F igs. 1 and 2,

each wheel at being carried by a fork e able to rock about an axis 6 carried by the one or more front floats. wheel is connected with the frame a of the machine by an elastic connection f which may be, for example, a rubber tie or a tensile spring. Owing to the tension of this spring f the wheels are pressed downward. In order that the wheels may offer no re-' sistance in the water when themachine is traveling on the water they can be wound upward by the crank-handle k of the winch z'by means of the ropes h, the handle k or the winch being fixed in its position for the time being by a pawl, brake .or other arrestmg device. released the wh'eelsd are pressed downward by the tension of the springs f or the like, so that the machine can land on the Wll..6lS d, the springs 7 taking up the blow due to landing. Insteadof tensile springs f beingused, compressed springs or other elasticmembers which take up pressure may be used; they must, however, act on the other side of the fork e or the axle of the wheels d, as is represented by the compressed springs provided in tubes 9 shown in Fig. 1.

I claim 1. In a hydroplan'e, the combination with the frame, a rear float and a front float carried thereby, an axis carried on thefront ed to rock about the axis, springs tending to rock the forks and drive the wheels downward, and a winch mounted on the frame When this arresting device is The fork e of each float,.forks, each carrying a wheel, mountand-operatively connected with said forks for rocking the same against the action of said springs and thereby elevating the .wheels. connected with the axis t of the latter.

2. In a hydroplane, the combination with the frame, a rear float and two front floats carried thereby, of an axis carried by the front floats, two forks, each carrying a and the front end thereof, springs tending to rock the forks and drive the wheels downward, and a winch mounted on the frame and operatively connected with said forks for rocking the same against the acportion of the float on whjch'it is mounted. 'tion of said springs. and thereby elevating In testimony whereof, I alfix my signa- 10 the vghleelsl.l d 1 v h b h tu're in the presen ce of two witnesses. 3. a ropane" t e com ination wit 5 the frame, 5nd front and rear floats carried GROSSER' thereby, of an angul'arly adjustable plane Witnesses:

mounted on each front float, each plane ex- JULIUS Roam,-

tending laterally on .both sides of the front KAR'I. Fmn RICH FRENTZEL. i 

